John Christopher Tynan (5 December 1925 – 23 August 2020) was a field hockey player and cricketer from New Zealand. He represented New Zealand in field hockey between 1948 and 1956, including at the 1956 Olympic Games in Melbourne.
He played four first-class cricket matches for Wellington between 1952 and 1954.
Tynan died on 23 August 2020, aged 94.